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Water-Year Summary for Site 11274000

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
11274000 San Joaquin River near Newman, CA
LOCATION - Lat 37°21'02", long 120°58'34" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.03, T.7 S., R.9 E., Stanislaus County, CA, Hydrologic Unit 18040002, on left bank, 600 ft downstream from bridge on Hills Ferry Road, 650 ft downstream from Merced River, and 3.5 mi northeast of Newman.
DRAINAGE AREA - 9,520 mi².
REVISIONS HISTORY - WSP 1930: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1912 to current year. Water years 1938-43 include flows through Merced River Slough. CHEMICAL DATA: Water year 1993. SPECIFIC CONDUCTANCE: Water years 1989, 1992-95. WATER TEMPERATURE: Water years 1989, 1992-95. SEDIMENT DATA: Water year 1993.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. Prior to Mar. 3, 1931, gage at various sites within 240 ft of bridge. Mar. 3, 1931, to Sept. 30, 1959, water-stage recorder within 300 ft of bridge, at datum 47.31 ft higher. Oct. 1, 1959, to Aug. 9, 1960, water-stage recorder at site 70 ft upstream, at present datum.
REMARKS - Natural flow of stream affected by storage reservoirs, ground-water withdrawals, diversions for irrigation, and imported water; low flows consist mainly of return water from irrigated areas.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Jan. 2, 1868, reached a stage of 69.0 ft, from floodmarks; flood of February 1886 reached a stage of 67.1 ft, from floodmarks; and flood of 1911 reached a stage of 66.3 ft, from floodmarks. All stages referred to current datum. Discharges unknown.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge (river only), 36,200 ft³/s, Jan. 28, 1997, elevation, 66.14 ft, maximum gage height, 66.26 ft, Apr. 9, 2006; minimum daily, 15 ft³/s, Aug. 9, 10, 1924. Maximum discharge (including flow in Merced River Slough in water years 1938-43), 33,000 ft³/s, Mar. 7, 1938.